llvm/clang-tools-extra/clangd/unittests/TestTU.h

//===--- TestTU.h - Scratch source files for testing -------------*- C++-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Many tests for indexing, code completion etc are most naturally expressed
// using code examples.
// TestTU lets test define these examples in a common way without dealing with
// the mechanics of VFS and compiler interactions, and then easily grab the
// AST, particular symbols, etc.
//
//===---------------------------------------------------------------------===//

#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_UNITTESTS_TESTTU_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_UNITTESTS_TESTTU_H

#include "../TidyProvider.h"
#include "Compiler.h"
#include "FeatureModule.h"
#include "ParsedAST.h"
#include "TestFS.h"
#include "index/Index.h"
#include "llvm/ADT/StringMap.h"
#include <memory>
#include <string>
#include <utility>
#include <vector>

namespace clang {
namespace clangd {

struct TestTU { … };

// Look up an index symbol by qualified name, which must be unique.
const Symbol &findSymbol(const SymbolSlab &, llvm::StringRef QName);
// Look up an AST symbol by qualified name, which must be unique and top-level.
const NamedDecl &findDecl(ParsedAST &AST, llvm::StringRef QName);
// Look up an AST symbol that satisfies \p Filter.
const NamedDecl &findDecl(ParsedAST &AST,
                          std::function<bool(const NamedDecl &)> Filter);
// Look up an AST symbol by unqualified name, which must be unique.
const NamedDecl &findUnqualifiedDecl(ParsedAST &AST, llvm::StringRef Name);

} // namespace clangd
} // namespace clang

#endif // LLVM_CLANG_TOOLS_EXTRA_CLANGD_UNITTESTS_TESTTU_H